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发明名称
METHOD OF PERFORMING HEAT TREATMENT OF A DRILLING ROD
摘要
申请公布号
PL161753(B1)
申请公布日期
1993.07.30
申请号
PL19900283972
申请日期
1990.02.23
申请人
WASYLECZKO ZENON
发明人
WASYLECZKO ZENON
分类号
C21D9/08;(IPC1-7):C21D9/08
主分类号
C21D9/08
代理机构
代理人
主权项
地址
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